采用图像定位与轮廓检测的喷墨宽度测量算法

提出基于图像定位与轮廓检测的喷墨宽度测量算法.首先,根据图像灰度熵特征与旋转定位函数,提出基于动态阈值熵函数分割与EmguCV的产品定位算子,得到产品中心点坐标与旋转角度;然后,传递给机器人Robert,引导Robert到产品边缘喷墨上方进行局部图像采集;最后,采用大律法分割法处理喷墨边缘图像,设计基于Canny边缘检测与轮廓检测的测量算子,从而完成喷墨宽度测量.实验数据显示:与当前目标宽度测量技术相比,文中算法具有更高的测量精度与稳定性.

Measurement Algorithm of Inking Width Using Image Localization and Contour Detection

This paper proposed a new measurement algorithm of inking width based on image localization and contour detection. Firstly, product location algorithm which’s based on segmentation of dynamic threshold value entropy function and EmguCV was proposed to get product center coordinates and rotation angle, and then passed it to the Robert, and guide the Robert to the local image acquisition edge to command inkjet products. Finally, great law segmentation was adopted to process the image on inkjet edge, based on Canny edge detection and contour measurement operator to complete inkjet width measurement. Experimental data shows that: compared with the current measurement technology, this algorithm has higher precision and stability..